Lubricator.



R. WOOD.

LUBRICATOR.

APPL|cATioN FILED Nov.27,1915.

Inventor:

Patented July 25, 1916.

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LUBRICATOR.

'APPLICATION vFILED Nov. 21. 1915. l l 93,253., Patented July 25, 1916.

' 2 SHEETS-SHEET 2.

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an srrrns raannr euries.

ROBERT WOOD, OF BROOKLYN, NEW YORK, ASSIGrNOB.,Y TO THE NATHAN MANUFACTUR- ING' COMPANY, 0F NEW YORK, N. Y., A CORPORATION'OF NEW YORK.

LU'BRICATOR.

Specification of Letters Patent.

Patented July 25, 1916.

To all whom t may concern:

Be it known that I, ROBERT Woon, a subject of the King of Great Britain and Ireland, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvement-s in Lubricators, of which the following is a specification.

rlhis invention relates to a heater for oil reservoirs for locomotives and the like, and its novelty consists in the construction and adaptation of the parts, as will be more fully hereinafter polnted out. @il reservoirs on locomotives are commonly so placed that they are exposed to the weather, and when it is cold the oil is apt to become congealed and stiftl so that it is notV fed properly or'continually to the parts to be lubricated. Attempts have been made to remedy this condition by surrounding the lubricant supply holder with a steam jacket or passing a steam pipe completely through the reservoir and the body of lubricant contained therein. But most lubricating oils are compound bodies or mixtures having varying boiling points and as steam is never less than two hundred and twelve degrees Fahrenheit in temperature, and when supplied to such a reservoir under ordinary conditions of use of a locomotive, is frequently of a higher temperature,"some or the major portion of the lubricant employed, when subjected to such a temperature, is apt to be injuriously affected thereby if not completely disintegrated. Y

My invention relates to a simple and novel means by which the oilcan be kept at a proper temperature for use without encountering the danger above specified.

In the drawings, Figure 1 is a side elevation of a lubricant holding device equipped with my npvel invention, a portion of the parts being shown cut away to show concealed parts and a heating device being shown in vertical central longitudinal section; Fig. 2 is a transverse section on the plane of the line 2-2 in Fig. 1, and Fig. 3 is a side elevation partly diagrammatic showing the method of equipping a locomotive with the device illust-rated Figs. 1 and 2.

In the drawings, 10 isa reservoir of any convenient size and shape, provided with a bottom 11, side walls 12, 12,*and a top 13, the latter being provided with a threaded ppening adapted to receive a coverA or closlng plug 14. Brackets 15, l5 project inwardly from the side walls and serve to supporta strainer of usual form indicatedl at 16.

At a convenient place, in two of the opposite side walls of the device, are formed apertures internally threaded and adapted each to receivevttings indicated at 40 and 41 respectively and which are in line with each other and are adapted to support the other parts of the heating device presently l to be described. Each of these fittings comprises a'threaded nipple 42 adapted to be screwed into the side wall of the reservoir, a longitudinal annular or tubular body indicated at'43, and which is provided with one or more transverse apertures indicated at 44, 44, and a terminal threaded nipple indicated at 45. p

Snugly lit-ting within each of these members 40 and 41 and transversely arranged across the reservoir is a pipe or tube indicate-d at 50, *which is provided with oppositely arranged apertures 51, 51 adapted to register with the apertures 44, 44, in the fittings referred to. This pipe is closed by means 'of a plug 55, 55, one at each end, which is secured in place by means of couplings 56, 56 in any usual manner. The plugs 55 are each provided with a central tubular bore 57, one of which at least is threaded and both of which are adapted to receive and support a steam pipe 60 arranged transvefsely across the entire apparatus, and which pipe is open at both ends bore 57. An appreciable annular space 61 is left between the inner surface of the tube 5() and the outer surface of the pipe 60 and this space, it will be noticed,has two dead ends formed by the inward terminal spaces of the plugs 55, 55 and yet communicates with the outer air through the apertures 51, 51 in the pipe 50, and the registering apertures 44, 44 in the fittings 40 and 41.

Each of the plugs 55 is provided with a terminal annular flange 58 internally threadcaused to pass from a source of steam supply p through the pipe 60 and thus across the entire apparatus and be discharged at .its opposite side. At the same time, it is evident that a current of air Will enter the apertures 44, 44,A

reach the space 61 between the steam pipe 60 and the outer pipe 50, will pass through such space, and around the pipe G0, and will be discharged at the. .corresponding apertures 44, 44 at the other endrof the apparatus. The pipe 60 it is obvious has no communicationwith the pipe 50, and the latter is open'at both endsl as described, so that it is evident-that the Ycurrent' of air throughv the pipe 50 will move in Whichever direction the locomotive is-moving.

' Any means may be employed to force oil 'from a supplyreservoir of this kind to the placesto be lubricated. ,Onev such means is described in Letters Patent of the United States, No. 1,162,27 5 issued to me NovemberI th, 1915, but the device which I prefer to employ is described and claimed in a copending application for Letters Patent of the United States, Serial No. 63,421, filedV November 26th, 1915, which device is described as follows: Secured to or made integral with one of the side Walls of the reservoir 10 'is a cylinder. 17 open atboth ends 17, there being a clear space of substantialdimensions between the two inner ends ofv the two cylinders. c The cylinder 19 is open or made integral with the reservoir casing and adapted to receive a pump piston 18.

Also secured tofor made integral with the ppposite side Wall of the reservoir is a cylinder 19 arranged in line with the cylinder at both ends and is adapted to receive a barrel 20 provided with a central oil receiving tube 22 expanded at its outer end to form a chamber 23 containing a valveA 24. The outer end. of the barrel is provided With an annular flange 25 internally threaded and adapted to receive a coupling 26 having a central bore 27, expanded at the end adjacent' tol the chamber 23 to form an extension'28 o f such chamber and adapted to re ceive a stem 29 of the valve 24, and a retraction spring 29:" adapted to restore the valve to place after it has -been unseated. A nipple 30 is secured 'to the coupling 26 and to this nipple is connected a conduit (not shown) adapted to carry the oil to the place to be lubricated.

At the end of the pump piston 18 there is` provided a ram 80 fitting closely Within the tube 22 and of such .a length that When the piston is a't the end of its stroke toward the Y left the ram will be wholly Withdrawn from.

the tube. Means are provided to impart a reciprocating motion to the pump .piston and the ram, consisting of a supplemental housing generally indicated at 31 secured to 10 and affording a slideway for a crosshead 32 secured to the piston and provided-with "ith oil'and kept filled above the level ofl I the cylinders 17 and 19. When the Ypiston is moved toward theleft and the ram 30 is completely Withdrawn from the tube 22- the' oil fills this tube and presses against the valve at the outer end thereof. When the reverse movement of the piston takes place, the ram enters the tube and forces a portion of the oil past the valve and against the action, of the valve spring and on into the conduit referred to. When the ram is again Withdrawn from the tube a fresh portion of oil enters'it and isforced forward as before. The valve springserves to retract the valve to position after it is unseated and to prevent any backward flow of the oil into the reservoir.v It will thus be seerr that by means of the device in question a 'supply of 95 oil isintermittentlyr delivered to the parts to be lubricated through the conduits re- Y,

ferred to.

I claim: A

' 1. The combination with a reservoir for a lubricant, of a source of 'steam supply, a'conduit for the steam passing through-the reservoir, and a conduit surrounding the steam'conduit and spaced apart therefrom an'd Withoutcommunicating therewith andV which surrounding conduit communicates with the air at both ends.

2. The combination with a' lubricant reservoir, of a source of steam supply, a pipe adaptedto conduct the steam to and through the reservoir, and means for keeping the pipeout of contact or communication with the lubricant in the reservoir, comprising van outer Vinclosing pipe open at bothY ends to the atmosphere.

3J -A device of the character described,

'comprising an oil reservoir and `means for forcing the oil therefrom through a suitable conduit -to Vthe .parts to be lubricated, means for maintaining the oil in a heated condition without burning, comprising asteam pipe located Within the body of oil in the reservoir and means for cooling its outer surface.

4. A device of the character described, comprising an oil reservoirV and means .for forcing the oil therefrom through a suitable conduit to the parts to be lubricated, means for maintaining the oil in a heated condition, Without burning, comprising a steam pipe located Within the body 0f oil in the .reservoir, and means for cooling its outer,sur

face, consistin of a device adapted to cause 6. The comblnation with a reservoir adapted to hold a supply of lubricant, of means for heating the lubricant and at the same time-preventing it from attaining an undesirable temperature, comprising a pipe adapted to conduct a heating fluid to and through thereservoir, and an outer pipe surrounding'the rst pipe so arranged that a substantial space is provided between the two pipes, and Vmeans for passing a current of' fluid cooler than the fluid in the first mentioned pipe through thespace between the two pipes.

In testimony whereof I affix my signature.

ROBERT WOOD. 

